Means for adjusting register of machine parts



y 1932- H. B. GREENWOOD 1,368,385

MEANS FOR ADJUSTING REGISTER OF MACHINE PARTS Filed Aug. 14, 1931 2Sheets-Sheet l Patented July 19, 1932 PATENT OFFICE.

HENRY B. GBEEHWQOI), OI GLENABM, MARYLAND ..mms iron museum's nners'rnaor mom ram-s Application filed August 14, 1981. Serial No. 557,190.

This invention relates to an attachment for machines having rotaryelements which operate upon work asslng through the machine, whereby eacrotary element may be adjusted about its axis, while the machine isheads about their axes while the machine is in motion, in order that theforms on'the cylinders may be brought into exact registry on the workand in order that the knives on the slotting heads may be made toengagethe blanks at exact points, to regulate the lengths of the slotsin the blanks. The attachment permits of a wide range of adjustmentwhile the machine is stopped, in order that the elements may bepreliminarily set in approximate registry, while the finer adjustmentsmay be made during the operation of the machine when any defects in theregistry can be observed on the work.

In carrying out the invention, a driving gear, which is part of a geartrain, is journaled upon the shaft which carries the rotary elementrequiring adjustment, and a sleeve which rotates with the shaft isslidable axially thereon. Two intermeshing spiraltoothed couplingmembers, concentric with the shaft and one within the other, are mountedupon the driving gear and sleeve, respectively. so that the power fromthe driving gear is transmitted through the coupling members and sleeveto the shaft. An adjustment of the sleeve lengthwise of the shaft willadjust the latter angularly with respect to the driving gear. Provisionis made for adjusting the sleeve, through the medium of a hand wheel,while the machine. is in motion, and provision is also made forreleasing the spiral coupling member from the sleeve so that the sleeveand shaft may. be turned through a wider range of adjustment when themachine is stopped. The invention also embodies certain features ofconstruction which will be clear from the following specification anddrawings.

In the accompanyin drawin Fig. 1 is a contra? longitudinal sectionthrough the adjusting mechanism and drivmg gear, mounted upon the shaftof the printing cylinder;

gig. 2 is a section on the line 22 of Fig. 1, an

Fig. 3 is a section on the line 3-3 of Fig. 1.

In the drawings the invention is represented as applied to the shaft aof a printing cylinder 6 which is usually driven by a train of gears,one of which is mounted u on the shaft. In the present invention, t espur gear a is one o the train and is journaled upon a bushing 1 whichis keyed to a reduced portion a of the shaft and rotates with-it, thekey being shown at 2. An internally threaded spiral coupling member d issecured to one side of the spur gear 0 by bolts 3 which also passthrough a vernier rlng 4 and clamp the latter against the member d. Asleeve e surrounds the bushing 1 and is keyed to the later by a key 5which fits into a groove 6 in the sleeve. Bolts 7 extend longitudinallythrough the sleeve and into a clampin ring 8 upon which an externallythreade spiral-toothed coupling member 9 is rotatively mounted. Theteeth of the member 9 are in mesh with the teeth of the member (1.Normally the member 9 is clamped tightly to the sleeve by the ring 8.With this arrangement, it will be seen that the driving force applied tothe spur gear a will be transmitted to the shaft a through the twospiral-toothed members, the sleeve e and the bushing 1 which is keyed tosaid sleeve and to the shaft.

The sleeve 6 is slidable longitudinally of the shaft and it will beevident that if the member 9 be moved to the right, in Fig. 1,

it will cause the shaft of the printing cylinder to be adjustedangularly with respect to the driving gear a which, being in a train ofgears, will not be moved by such adjustment. A movement of the member 9in the opposite direction will cause a corresponding adjustment of thecylinder shaft and cylinder.

The adjustable sleeve e projects some distance beyond the bushing 1, asshown in Fig. 1, and a radial and thrust ball bearing f is arrangedbetween the sleeve and an adjusting nut g which is threaded onto astationary sleeve h which surrounds the end portion of the shaft (2. Thenut g is provided with a hand wheel 10 by which it may be turned on thestationary sleeve and the nut is split at one end so that it may beclamped by a screw 11 to said sleeve to revent rotation of the nut bythe friction of t e hearing I. The sleeve h has an extension 12 in whichis fitted a vertically arranged torque bar 13, the lower end of whichextends into a socket in a stationary bracket 14. The torque barprevents rotation of the sleeve. For some purposes, it is desirable toadjust the printing cylinder vertically, to suit different thicknessesof material upon which it may be operating and for that reason thetorque bar is slidable vertically in the socket of the bracket 14.

It will be evident from the foregoing description that if the hand wheel10 is turned, the nut 9 will be moved longitudinally of the shaft andthrough the thrust and radial bearing f. the rotatable sleeve e and thespiral-toothed coupling member 9 which is clamped to it will moveaxially and the spiral teeth will also cause the sleeve e, bushing 1 andshaft a to be angularly adjusted with respect to the spur gear 0. Thusthe register of the printing cylinder can be changed while the machineis in motion.

As the driving force is applied to the cylinder shaft throughspiral-toothed coupling members. the latter give an endwise thrust tonut g and hence to sleeve h. In order to prevent endwise movement of thenut and sleeve, thrust bearings, j and I: are arranged at the ends ofthe stationary sleeve h. The bearing is is arranged between stop nut 15on the shaft and the sleeve 12., and the bearing j is arranged betweensaid sleeve and a disk 16, which is slidably mounted on a stud 17projecting axially from the end of the shaft. The disk is adjustable totake up end play and wear in the bearings j and k, by means of nuts 18.Wear and play in. the bearing 7' can be taken up by adjusting the nuts18 and further adjustment of these nuts will cause sleeve 72. to slideaxially on shaft 0. and will likewise remove any play from bearing k.The nut 15 prevents endwise movement of the sleeve 1 on the shaft.

By turning the hand wheel. a limited adjustment of the shaft andprinting cylinder may be made while the machine is in motion. To providefor a greater adjustment, as when initially setting the printingcylinder, the spiral-toothed coupling member 9 may be unclamped from thesleeve 6. by loosening the clamping screw 7 and the sleeve may then berotated independently of the gears. For this purpose, the sleeve isprovided with several sockets 19 into which a wrench may be inserted toturn the sleeve about its axis. As the sleeve is keyed to the bushin 1and the latter is keyed to the cylinder shaft, the shaft will rotatewith the sleeve. After this larger adjustment is made, the bolts 7 willbe tightened to clamp the member 9 to the sleeve, and the fineradjustments can then be made by turning the hand wheel while the machineis in motion.

The sleeve e has an index mark 4" (Fig. 2) adjacent the ring 4 and thelatter has a scale 4, by reference to which the degree of adjustment ofthe shaft and cylinder may be observed.

While I have described the inventionas applied to a shaft of a printingcylinder, for the purpose of illustration, it will be evident that itmay be applied to the shaft of any rotary element which requiresadjustment angularly with respect to the driving gear on the shaft, andin machines where several such elements are geared together and operatein unison, an adjusting attachment will be applied to the shaft of eachelement.

What I claim is:

1. The combination with a shaft and a driving gear journaled thereon, ofmeans for adjusting the shaft angularly with respect to said gearcomprising a sleeve rotatable with the shaft and axiall movable thereon,two intermeshing spira -toothed coupling members concentric with theshaft and one within the other, one of said spiral members being securedto the driving gear and the other secured to said sleeve, and means foradjusting said sleeve axially of the shaft.

2. The combination with a shaft and a driving gear journaled thereon, ofmeans for adjusting the shaft angularly with respect to said gearcomprising a sleeve rotatable with the shaft and axially movablethereon, two intermeshing spiral-toothed coupling members concentricwith the shaft and one within the other, one of said spiral membersbeing socured to the driving gear and the other being j ournaled on thesleeve, means for clamping the latter member to the sleeve, and meansfor adjusting said sleeve axially of the shaft.

3. The combination with a shaft and a driving gear journaled thereon, ofmeans for adjusting the shaft angularly with respect to said gearcomprising a sleeve rotatable with the shaft and axially movablethereon, two

intermeshing spiral-toothed coupling members concentric with the shaftand one within the other, one of said spiral members being secured tothe driving gear and the other secured to said sleeve, and means foradjusting said sleeve axially of the shaft comprising a stationarysleeve surrounding the shaft, an adjusting nut threaded on to saidsleeve and a thrust bearing between said stationary and rotatablesleeves.

4. The combination with a shaft and a driving gear journaled thereon, ofmeans for adjusting the shaft angularly with respect to said gearcomprising a sleeve rotatable with the shaft and axially movablethereon,two intermeshing spiral-toothed coupling members concentric withthe shaft and one within the other, one of said spiral members beingsecured to the driving gear and the other secured to said sleeve, meansfor adjusting said sleeve axially of the shaft comprising a stationarysleeve surrounding the shaft, an adjusting nut threaded on to saidsleeve and a thrust bearing between said stationary and rotatablesleeves, stops on the shaft at the ends of the stationary sleeve, andthrust bearings between the last mentioned sleeve and the stops.

5. The combination with a shaft and a driving gear journaled thereon, ofmeans for adjusting the shaft angularly with respect to said gearcomprising a sleeve rotatable with the shaft and axially movablethereon, two intermeshing spiral-toothed coupling members concentricwith the shaft and one within the other, one of said spiral membersbeing secured to the driving gear and the other secured to said sleeve,means for adjusting said sleeve axially of the shaft comprising astationary sleeve surrounding the shaft, an adjusting nut threaded on tosaid sleeve and a thrust bearing between said stationary and rotatablesleeves, stops on the shaft at the ends of the stationary sleeve. andthrust bearings between the last mentioned sleeve and the stops, and avertically extending torque rod secured to the stationary sleeve andloose 1y engaging a stationary socket.

In testimony whereof, I affix my signature.

HENRY B. GREENWOOD.

DISCLAIMER 1,868,385.-Hemy B. Greenwood, Glenarm, Md. MEANS FORADJUSTING REGISTER or MACHINE PARTS. Patent dated July 19, E932.Disclaimer filed Mav T. 1934, by the patentee.

I- Iereby enters this disclaimer to claim 1 of said Letters Patent, towit:

1. The comb1nat1on with. a shaft and a driving gear journaled thereon,of means for ad usting the shaft angularly with respect to said gearcomprising a sleeve rotatable wlt the shaft and axially movable thereon,two intermeshing, spiral-toothed coupling members concentric with theshaft and one within the other, one of said spiral members bemgsecuredto the driving gear and the other secured to said sleeve and means foradgustmg said sleeve axially of the shaft,

[Ofiict'al Gazette May 29, 1934.]

adjusting the shaft angularly with respect to said gear comprising asleeve rotatable with the shaft and axially movable thereon,twointermeshing spiral-toothed coupling members concentric with the shaftand one within the other, one of said spiral members being secured tothe driving gear and the other secured to said sleeve, means foradjusting said sleeve axially of the shaft comprising a stationarysleeve surrounding the shaft, an adjusting nut threaded on to saidsleeve and a thrust bearing between said stationary and rotatablesleeves, stops on the shaft at the ends of the stationary sleeve, andthrust bearings between the last mentioned sleeve and the stops.

5. The combination with a shaft and a driving gear journaled thereon, ofmeans for adjusting the shaft angularly with respect to said gearcomprising a sleeve rotatable with the shaft and axially movablethereon, two intermeshing spiral-toothed coupling members concentricwith the shaft and one within the other, one of said spiral membersbeing secured to the driving gear and the other secured to said sleeve,means for adjusting said sleeve axially of the shaft comprising astationary sleeve surrounding the shaft, an adjusting nut threaded on tosaid sleeve and a thrust bearing between said stationary and rotatablesleeves, stops on the shaft at the ends of the stationary sleeve. andthrust bearings between the last mentioned sleeve and the stops, and avertically extending torque rod secured to the stationary sleeve andloose 1y engaging a stationary socket.

In testimony whereof, I affix my signature.

HENRY B. GREENWOOD.

DISCLAIMER 1,868,385.-Hemy B. Greenwood, Glenarm, Md. MEANS FORADJUSTING REGISTER or MACHINE PARTS. Patent dated July 19, E932.Disclaimer filed Mav T. 1934, by the patentee.

I- Iereby enters this disclaimer to claim 1 of said Letters Patent, towit:

1. The comb1nat1on with. a shaft and a driving gear journaled thereon,of means for ad usting the shaft angularly with respect to said gearcomprising a sleeve rotatable wlt the shaft and axially movable thereon,two intermeshing, spiral-toothed coupling members concentric with theshaft and one within the other, one of said spiral members bemgsecuredto the driving gear and the other secured to said sleeve and means foradgustmg said sleeve axially of the shaft,

[Ofiict'al Gazette May 29, 1934.]

